diff --git a/src/config/chains/index.ts b/src/config/chains/index.ts
index b980e6e..39954bd 100644
--- a/src/config/chains/index.ts
+++ b/src/config/chains/index.ts
@@ -1,3 +1,2 @@
 export * from './crab';
 export * from './darwinia';
-export * from './pangolin';
diff --git a/src/config/chains/pangolin.ts b/src/config/chains/pangolin.ts
deleted file mode 100644
index 58b9d8a..0000000
--- a/src/config/chains/pangolin.ts
+++ /dev/null
@@ -1,53 +0,0 @@
-import { ChainId, ChainConfig } from '@/types/chains';
-
-export const pangolin: ChainConfig = {
-  /**
-   * Chain
-   */
-  id: ChainId.PANGOLIN,
-  name: 'Pangolin',
-  nativeCurrency: {
-    name: 'PRING',
-    symbol: 'PRING',
-    decimals: 18
-  },
-  rpcUrls: {
-    default: {
-      http: ['https://pangolin-rpc.darwinia.network'],
-      webSocket: ['wss://pangolin-rpc.darwinia.network']
-    },
-    public: {
-      http: ['https://pangolin-rpc.darwinia.network'],
-      webSocket: ['wss://pangolin-rpc.darwinia.network']
-    }
-  },
-  blockExplorers: {
-    default: {
-      name: 'Subscan',
-      url: 'https://pangolin.subscan.io/'
-    }
-  },
-  testnet: true,
-  /**
-   * rainbowkit iconUrl
-   */
-  iconUrl: '/images/chains/pangolin.png',
-  /**
-   * Token info
-   */
-  nativeToken: {
-    symbol: 'PRING',
-    decimals: 18,
-    logoPath: '/images/token/pring.png'
-  },
-  ktonToken: {
-    address: '0x0000000000000000000000000000000000000402',
-    symbol: 'PKTON',
-    decimals: 18,
-    logoPath: '/images/token/pkton.svg'
-  },
-  /**
-   * stakingContract
-   */
-  stakingContractAddress: '0x000000000419683a1a03abc21fc9da25fd2b4dd7'
-} as const satisfies ChainConfig;
diff --git a/src/types/chains.ts b/src/types/chains.ts
index 21ad991..1a75dbd 100644
--- a/src/types/chains.ts
+++ b/src/types/chains.ts
@@ -4,8 +4,7 @@ import type { Chain } from '@rainbow-me/rainbowkit';
  */
 export enum ChainId {
   CRAB = 44,
-  DARWINIA = 46,
-  PANGOLIN = 43
+  DARWINIA = 46
 }
 
 interface NativeToken {
diff --git a/src/utils/chain.ts b/src/utils/chain.ts
index 3ca61c0..0dea8d7 100644
--- a/src/utils/chain.ts
+++ b/src/utils/chain.ts
@@ -1,12 +1,11 @@
-import { darwinia, crab, pangolin } from '@/config/chains';
+import { darwinia, crab } from '@/config/chains';
 import { ChainConfig, ChainId } from '@/types/chains';
 
 // Map object to return a specific chain configuration
 // Using Record<ChainId, ChainConfig> to ensure type safety
 const chainConfigMap: Record<ChainId, ChainConfig> = {
   [ChainId.DARWINIA]: darwinia,
-  [ChainId.CRAB]: crab,
-  [ChainId.PANGOLIN]: pangolin
+  [ChainId.CRAB]: crab
 };
 
 // Helper function to filter testnets in production